Internet Explorer 7 Slow to Respond after Applying Security Update in Windows Vista

Many people are reporting Internet Explorer 7 is slow to respond after applying a Security Update (Hotfix) for Windows Vista. I have seen this behaviour on many systems in the last couple of weeks. All the systems I have encountered with this problem had literally 10s of thousands URLs (websites) listed in the Restricted Zone for Internet Explorer which is located in the Internet Properties Security page. When there is literally 10s of thousands URLs listed in the Restricted Zone, Internet Explorer will scan through all of the Restricted sites every time you navigate from one web page to another which will cause the slow response of Internet Explorer.

How did all these sites get listed in the Restricted Zone?

Anti-malware products such as Spybot – Search and Destroy, Webroot Spy Sweeper, and Javacool SpywareBlaster are some anti-malware products that use the Restricted Zone to help protect you from malicious web sites.

Will Microsoft fix this problem?

I highly doubt Microsoft will fix this issue of having 10s of thousands URLs (websites) listed in the Restricted Zone because the Restricted Zone was not designed for the purpose of anti-malware products adding thousands of web sites to the Restricted Zone. The Restricted Zone was designed for you to put in web sites in the Restricted Zone not anti-malware products bogging down the Restricted Zone.

Method 1 – Remove URLs from Restricted Zone using Internet Properties (RIES)

NOTE

To enlarge the images, simply click on the images you would like to view. With Internet Explorer 7, you can right-click on the image to select Open in New Tab.

  1. Click on the Start Orb(commonly known as the Start button).
  2. Type inetcpl.cpl in the Start Search field on the Start Menu. Refer to Step 1 on the Image below.
  3. The Programs in the Start Menu in the left pane will populate. "inetcpl.cpl" should appear. Click inetcpl.cpl (Step2) to launch the Internet Properties control panel. Refer to Image below.

     

  4. The Internet Properties applet should open, click the Advance tab. Refer to Image below.

     

  5. Click the Reset… button under Reset Internet Explorer settings. Refer to Image below.

     

  6. Click OK to close the Internet Properties window.

NOTE

To enlarge the images, simply click on the images you would like to view. With Internet Explorer 7, you can right-click on the image to select Open in New Tab.

Method 2 – Remove URLs from Restricted Zone using Windows Vista Registry Editor

CAUTION

Before making any changes to the Windows Vista Registry, please backup your Windows Vista Registry using Windows Vista System Protection and the directions from "Create a System Restore Point".

  1. Open the Windows Vista Registry Editor, refer to "Opening the Registry Editor without Elevated Privileges" blog article for instructions.
  2. Navigate to:

    HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains

  3. Delete all sub-keys in the Domain key.
  4. Exit the non-elevated Windows Vista Registry Editor.
  5. Open the Windows Vista Registry Editor with Elevated Privileges, refer to "Opening the Registry Editor with Elevated Privileges" blog article for instructions.
  6. Navigate to:

    HKLM\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains

  7. Delete all sub-keys in the Domain key.
  8. Navigate to:

    HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains

  9. Delete all sub-keys in the Domain key.
  10. Exit the elevated Windows Vista Registry Editor.

Method 3 – Remove URLs from Restricted Zone using REG DELETE

CAUTION

Before making any changes to the Windows Vista Registry, please backup your Windows Vista Registry using Windows Vista System Protection and the directions from "Create a System Restore Point".

  1. Open a Command Prompt, refer to "Opening a Command Prompt without Elevation" blog article for instructions.
  2. Type:

    REG DELETE "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains"

  3. Press ENTER on your keyboard.
  4. Type:

    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains" /ve

  5. Type EXIT and press ENTER on your keyboard to close the non-elevated Command Prompt.
  6. Open a command prompt with Elevated Privileges, refer to "Opening an Elevated Command Prompt" blog article for instructions.
  7. Type:

    REG DELETE "HKLM\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains"

  8. Press ENTER on your keyboard.
  9. Type:

    REG ADD "HKLM\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains" /ve

  10. Press ENTER on your keyboard.
  11. Type:

    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains" /ve

  12. Type:

    REG DELETE "HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains"

  13. Press ENTER on your keyboard.
  14. Type:

    REG ADD "HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains" /ve

  15. Press ENTER on your keyboard.
  16. Type EXIT and press ENTER on your keyboard to close the elevated Command Prompt.

Method 4 – Remove URLs from Restricted Zone using an Registration File

CAUTION

Before making any changes to the Windows Vista Registry, please backup your Windows Vista Registry using Windows Vista System Protection and the directions from "Create a System Restore Point". NOTE: To enlarge the images, simply click on the images you would like to view. With Internet Explorer 7, you can right-click on the image to select Open in New Tab.

  1. Download Rmv.Rstrctd.Zns.CU.reg and Rmv.Rstrctd.Zns.LM.reg to a folder on your hard drive.
  2. Right-click Rmv.Rstrctd.Zns.CU.reg to select Merge.
  3. A confirmation window will appear asking if you want to merge the Rmv.Rstrctd.Zns.CU.reg registration file into the Windows Vista Registry. Click Yes to continue with the merge of the registration file. Refer to Image below.

     

  4. If you are successful with merge of the Rmv.Rstrctd.Zns.CU.reg registration file then the following window should appear. Refer to Image below.

     

  5. If you have added "Run as Administrator" context menu for registration file using this article, "Adding "Run as Administrator" to a Registration File Context Menu" then right-click Rmv.Rstrctd.Zns.LM.reg to select Run as administrator.
  6. A UAC Prompt should appear to allow access to the elevated Registration merge. Click on Continue to allow the elevated Registration merge to continue. Refer to the Image below.

     

  7. A confirmation window will appear asking if you want to merge the Rmv.Rstrctd.Zns.LM.reg registration file into the Windows Vista Registry. Click Yes to continue with the merge of the registration file. Refer to Image below.

     

  8. If you are successful with merge of the Rmv.Rstrctd.Zns.LM.reg registration file then the following window should appear. Refer to Image below.

     

  9. The URLs for the Restricted Zone should now be removed.

NOTES

The Rmv.Rstrctd.Zns.CU.reg and Rmv.Rstrctd.Zns.LM.reg registration files is from my web server (http://lprf.homeserver.com). You also can view the contents of the Rmv.Rstrctd.Zns.CU.reg and Rmv.Rstrctd.Zns.LM.reg registration files by right-clicking the file and selecting Edit. You may need to log off then log on to your user account or restart your computer for the changes to take affect. NOTE: To enlarge the images, simply click on the images you would like to view. With Internet Explorer 7, you can right-click on the image to select Open in New Tab.

Platforms Tested

  • Microsoft Windows Vista 32-bit (x86) Editions

Related Articles

Version 1.1
Edited: May 6, 2012

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